# Ganirelix (Antagon)

> GnRH antagonist for IVF cycles.

Source: https://peptides.cafe/peptide/ganirelix
Category: GnRH Antagonist · Reproductive
Tag: FDA-Approved · Fertility

## Mechanism
Decapeptide GnRH antagonist that rapidly suppresses pituitary LH/FSH release, used during ovarian stimulation to prevent premature ovulation.

## Research areas
- IVF / assisted reproduction

## Common research protocols
- Daily: 0.25 mg SC daily starting on stimulation day 5–6.

## Study summaries
- "Ganirelix dose-finding study" — Fertility & Sterility (1998): Established 0.25 mg as optimal LH-suppressing dose.

## Considerations
- FDA-approved.
- Generally well-tolerated; mild injection reactions.

## Disclaimer
Educational content only. Not medical advice, diagnosis, or treatment. Most research peptides are not FDA-approved for human therapeutic use. Consult a licensed clinician before any use.